Grand Coulee Dam
Friday June 5, 2026
| Hour | Total Outflow kcfs | Generation Flow kcfs | Spill kcfs | Forebay Elevation | Tailwater Elevation | Average Head |
|---|
| 1 | 150.20 | 150.20 | 0.00 | 1275.76 | 966.20 | 309.56 |
| 2 | 139.40 | 139.40 | 0.00 | 1275.80 | 965.20 | 310.60 |
| 3 | 137.30 | 137.30 | 0.00 | 1275.80 | 964.70 | 311.10 |
| 4 | 138.90 | 138.90 | 0.00 | 1275.90 | 964.70 | 311.20 |
| 5 | 143.60 | 143.60 | 0.00 | 1275.80 | 964.90 | 310.90 |
| 6 | 167.00 | 167.00 | 0.00 | 1275.80 | 966.60 | 309.20 |
| 7 | 163.30 | 163.30 | 0.00 | 1275.80 | 967.20 | 308.60 |
| 8 | 141.90 | 141.90 | 0.00 | 1276.00 | 965.40 | 310.60 |
| 9 | 157.30 | 157.30 | 0.00 | 1276.00 | 966.00 | 310.00 |
| 10 | 155.20 | 155.20 | 0.00 | 1275.90 | 966.20 | 309.70 |
| 11 | 152.50 | 152.50 | 0.00 | 1276.00 | 966.10 | 309.90 |
| 12 | 152.80 | 152.80 | 0.00 | 1275.90 | 965.70 | 310.20 |
| 13 | 173.30 | 173.30 | 0.00 | 1275.90 | 967.20 | 308.70 |
| 14 | 165.70 | 165.70 | 0.00 | 1275.90 | 967.30 | 308.60 |
| 15 | 163.90 | 163.90 | 0.00 | 1276.00 | 967.00 | 309.00 |
| 16 | 165.30 | 165.30 | 0.00 | 1276.00 | 967.10 | 308.90 |
| 17 | 171.00 | 171.00 | 0.00 | 1276.00 | 967.50 | 308.50 |
| 18 | 166.90 | 166.90 | 0.00 | 1276.00 | 967.50 | 308.50 |
| 19 | | | | | | |
| 20 | | | | | | |
| 21 | | | | | | |
| 22 | | | | | | |
| 23 | | | | | | |
| 24 | | | | | | |
|
| AVG | 155.86 | 155.86 | 0.00 | 1275.90 | 966.25 | 309.65 |
|
| MAX | 173.30 | 173.30 | 0.00 | 1276.00 | 967.50 | 311.20 |
| MIN | 137.30 | 137.30 | 0.00 | 1275.76 | 964.70 | 308.50 |